55.2-59 1959 GMC fleet - 250 I6 - NV3500 - 12 bolt 3.73

[dennislbrooks]

OK, has anyone retained the clutch floor pedal and put a clutch master cylinder on the firewall? Will have to be a perpendicular mount and the pushrod will have to be mounted to the in cab pedal arm. I have a an NV3500 and plan -- have not checked yet - on using a block mounted starter - 153 tooth flywheel - 10.5 clutch. It appears the NV3500 is a coarse 10 spline input like the m20 and I have not verified but looks like the output shaft is 27 spline also.

Engine has been fitted and I used an m20 for mounting. It appears I can use the original driveshaft with a 27 spline long yoke. The NV3500 may be 1/2 to one inch shorter. I can still move my front and rear mounts for the I6 and tranny.

I may be able to mount the clutch master cylinder to the frame and use the existing clutch pivot arm on the engine side. Would have to get my angles correct. Will cost me $90 to find out.

Any info and/or anticipated problems are appreciated.